4-Cyano-6-(difluoromethyl)-3-fluoro-2-(trifluoromethyl)pyridine
3-Cyano-5-(difluoromethyl)-2-fluoro-4-(trifluoromethyl)pyridine
Methyl 2-chloro-4-(difluoromethyl)-5-nitropyridine-3-acetate
6-Cyano-2-(difluoromethyl)-4-fluoro-3-(trifluoromethyl)pyridine